https://bugs.kde.org/show_bug.cgi?id=502023
Zamundaaa <xaver.h...@kde.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Resolution|WAITINGFORINFO |---
Status|NEEDSINFO |REPORTED
--- Comment #8 from Zamundaaa <xaver.h...@kde.org> ---
With HDR, depending on the GPU and driver capabilities, very slight color
differences aren't entirely unexpected.
(In reply to Avraham Hollander from comment #3)
> Created attachment 181535 [details]
> drm_info run during direct scanout. I used sleep so it would run after the
> video started playing in direct scanout.
hmm, so there's no LUTs, no CTM, just the buffer in direct scanout without any
additional color operations.
Maybe the YUV->RGB matrix i915 uses don't exactly match the matrix KWin uses
(and amdgpu)... Not sure how to test for that though. We just set
> │ ├───"COLOR_ENCODING": enum {ITU-R BT.601 YCbCr, ITU-R BT.709
> YCbCr} = ITU-R BT.709 YCbCr
> │ ├───"COLOR_RANGE": enum {YCbCr limited range, YCbCr full range} =
> YCbCr limited range
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